What cylinders to use? New Question.

[Coff 06]

Asked about using mt 88" cyls for my next build on my 95" 06 FXSTSI,understood that would be a good idea.Happened to tell the owner of the local H-D dealership about my plans,he told me the stock 88" cyls won't go that far.So how big can the 88"s be safely bored to? Just want to clear this up so I can decide what I need to do.As Always TIA           Coff 06

[BONERACIN]

Yes they will !!!!!!!!!!!!!

[04glide]

Thats pretty funny, The owner of the dealership? Just goes to show what he knows.

[Coff 06]

Kinda what I thought.So can they be bored more than 95"?If so how far?     Coff 06

[JOS]

Well, mine are being cut right now to 96". I hope they go that far...lol. Pretty interesting that the owner of an HD dealership has very limited knowledge about his product. Maybe he should check out some of the forums...

[2001FLSTC]

Well, mine are being cut right now to 96". I hope they go that far...lol. Pretty interesting that the owner of an HD dealership has very limited knowledge about his product. Maybe he should check out some of the forums...

Isn't the bore on a TC88 exactly the same as the bore on a TC96?  The displacement is different because of the stroke not the bore.  It's the same parts and bore dia. to make a 95" from a 88" as it is to go from a 96" to a 103".

[crazycalvin]

Factory HD TC 95 & TC 96 use the same size jugs.  Ooops!  Meant to say Factory HD TC 88 & TC 96 use the same size jugs.  Thanks for pointing out the error.  Later, Calvin.

[FXDBI]

Headquaters will bore them to 98in and supply and fit the pistons....Bob

[Admiral Akbar]

Some think the 95" cylinders are larger in diameter then the stock ones...used to hang with a "Know It All" that called himself a mechanic that argued about this very thing with me once       

What do you mean? As far as I know they are. 95s are 3 7/8 while stock 88s or 96s are 3 3/4.. Maximum

[Coff 06]

Sounds like I should check out Headquarters,I would like to get all the "cubes" I can without stroking at this time.Have any contact info for them?   Coff 06




Found that info on porters list
gotta love this modify button

[JOS]

Well, mine are being cut right now to 96". I hope they go that far...lol. Pretty interesting that the owner of an HD dealership has very limited knowledge about his product. Maybe he should check out some of the forums...

Isn't the bore on a TC88 exactly the same as the bore on a TC96?  The displacement is different because of the stroke not the bore.  It's the same parts and bore dia. to make a 95" from a 88" as it is to go from a 96" to a 103".

Yes, the STOCK bore on a TC88 and a TC96 are the same (3.75). The stroke on a TC96 is longer by, roughly, 3/8". I think I know what you're trying to say...But, there are a lot of different bore/stroke combos that can achieve 95" or 103" or whatever. Google up some bore/stroke charts and you'll see what I mean. The simplest and cheapest way to turn a TC88 into a TC95/96/98 is to increase the bore...period.

[FXDBI]

http://www.head-quarters.com/

[Coff 06]

Anyone using their 98" pistons & jugs on a FX softail,or anything else?      Coff 06
      (Headquarters)

[Hillside Motorcycle]

We bore the 88' to 98", and go from 96" to 107" as well.
Works great.

[Jim Logan 1965]

I have used several sets for 98 and 107.

[Caper]

Asked about using mt 88" cyls for my next build on my 95" 06 FXSTSI,understood that would be a good idea.Happened to tell the owner of the local H-D dealership about my plans,he told me the stock 88" cyls won't go that far.So how big can the 88"s be safely bored to? Just want to clear this up so I can decide what I need to do.As Always TIA           Coff 06

Here's a little info taken from HeadQuarters site about using 88" cyls for a 95" build.
My guess is your dealer wants to sell you new jugs.

For 88 to 95 Twin Cam conversions, we prefer to bore a seasoned stock Twin Cam cylinder to size rather than selling you a new set of bigger bore cylinders. The end result is the very same, cylinder sleeve thickness wise, BUT the seasoned stock cylinder will hold it’s shape better after boring and last much longer.

[fxrp]

Thats pretty funny, The owner of the dealership? Just goes to show what he knows.

Oh I think he knows. He lies so he can get you to buy $400 worth of new cylinders.